To set apart for a particular purpose; designate: assigned a day for the inspection. To select for a duty or office; appoint: firefighters assigned to the city's industrial park. To give out as a task; allot: assigned homework to the class. To ascribe; attribute: sorted the rocks by assigning them to different categories. See Synonyms at attribute. Law To transfer (property, rights, or interests) from one to another. To place (a person or a military unit) under a specific command. Law An assignee.